PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-06:27:50
G08     312.0          17.2                4.2 +/-    2.11       9.9 +/-    2.11  0.110 / 0.230
G10     330.3          59.7                1.9 +/-    0.71       2.1 +/-    0.71  0.110 / 0.250
G14     218.1          25.8                8.3 +/-    1.04      15.9 +/-    1.04  0.040 / 0.080
G15     46.7           11.5                1.9 +/-    2.14       5.2 +/-    2.14  0.030 / 0.080
G20     57.4           50.3                4.7 +/-    0.26       5.9 +/-    0.26  0.050 / 0.090
G21     133.5          58.4                6.8 +/-    0.88       7.9 +/-    0.88  0.050 / 0.080
G24     74.4           29.9                4.2 +/-    0.42       7.4 +/-    0.42  0.030 / 0.030
G27     275.5          37.5                6.2 +/-    0.85       9.5 +/-    0.85  0.040 / 0.040
G32     222.6          53.5                7.5 +/-    1.80       9.1 +/-    1.80  0.110 / 0.210